package example001;
//定义Animal类
class Animal {
    private  String name;
    private int age;
    public void setName (String name){
        this.name = name;
    }
    public String getName (){
        return name;
    }
    public int getAge(){
        return age;
    }
    public void setAge (int age) {
        this.age = age;
    }
}
//定义Dog类继承Animal类
class  Dog extends  Animal {
    //此处不写任何代码
}
//定义测试类
public class Example01 {
    public static void main (String[] args) {
        Dog dog = new Dog();
        dog.setName ("牧羊犬");
        dog.setAge(3);
        System.out.println("名称："+dog.getName()+",年龄："+dog.getAge());
    }
}
